#INITIALIZE MUTEX PTHREAD C UPDATE#
#INITIALIZE MUTEX PTHREAD C CODE#

Description: Demonstrate the use of the producer consumer problem The example on this page demonstrates the use of the above solution using the вЂњ pthread_mutex_lock()вЂќ function call to limit access to the critical section, and the вЂњ pthread_cond_wait()вЂќ function call to simulate the sleeping process.

The next time the producer puts data into the buffer, it wakes up the sleeping consumer and the process continues. In the same way, the consumer can go to sleep when the producer is accessing it. In this instance, a solution for the producer can be to go to sleep if a synchronization conflict occurs, and the next time the consumer removes an item from the buffer, it can notify the producer to wake up and start to fill the buffer again. The problem is to make sure that the producer wont try to manipulate that shared resource (i.e: add data into the buffer) while the consumer is accessing it and that the consumer wont try to remove data from that shared resource (the buffer) while the producer is updating it. At the same time, the consumer is consuming that shared resource (i.e: removing something from that same buffer) one piece at a time.

#INITIALIZE MUTEX PTHREAD C UPDATE#

In this scenario, the producerвЂ™s job is to generate a piece of data, update that data with the shared resource (the buffer), and repeat. The producerвЂ“consumer problem describes a scenario in which two processes (the producer and the consumer) share a common resource (i.e: a string buffer). This procedure highlights a classic example of a multi-process synchronization problem known as the producerвЂ“consumer problem. Make calls to specific Pthreads functions to set individual attributes in the object. Call pthreadattrinit to declare and initialize the attribute object. Here, a critical section refers to the period of time in which a process accesses a shared resource, such as shared memory. To set a threadвЂ™s attributes to something other than the default, weвЂ™d perform the following steps: Define an attribute object of type pthreadattrt. The use of mutual exclusion (mutex) variables refers to the requirement of ensuring that no two processes or threads are in their critical section at the same time.

#INITIALIZE MUTEX PTHREAD C CODE#

The following is sample code which demonstrates the use of POSIX threads ( pthreads), aswell as pthread mutex and condition variables for use on Unix based systems.

Initialize mutex pthread c